There are various state and territory requirements for notifying winners once they have been drawn in a game of chance.
VIC
Winners must be notified in writing, for example, by email, mail, fax or SMS
ACT
Winners must be notified within 21 days of the draw in writing.
SA
Winners must be notified within 7 days of the draw in writing.
NT
Winners must be notified as specified in the terms and conditions.
NSW, QLD, WA & TAS
No specific requirements.
National
Based on the most stringent requirements above, tor NATIONAL trade promotions winners must be notified within 7 business days of the draw. Winners must also be notified in writing, and this can also be done within 7 days of the draw.